Definition of "atmo" []

• The standard atmospheric pressure used in certain physical measurements and calculations; conventionally, that pressure under which the barometer stands at 760 millimeters, at a temperature of 0° Centigrade, at the level of the sea, and in the latitude of Paris. (noun)

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• "CSTS Seattle, WA breaks atmo this Saturday 17th July at 4. 30pm."
• "The 19s barely have enough room for a rockjock to climb inside, no wings or atmo ability, just a big pod."
• "He smiled, because his rhyme caused a little atmo - spheric effect; it thought he was doing magic."